baber/WOPTO huggingface dataset:
Patent GB-1401724-A (GB)
Title: Cooled enclosure
IPC: H05K7/20
Filed: 1973-07-06
Abstract: 1401724 Cooling components BORGWARNER CORP 6 July 1973 [18 Sept 1972] 32298/73 Heading H1R [Also in Division F4] Semi-conductor devices and similar heatgenerating solid state components 16 to be cooled are submerged with liquid refrigerant baths 50 in chambers 14. The chambers 14 communicate with a chamber 30 which contains a tube 34 for the passage of a cooling medium which communicates with a vapour collecting header 38 connected to secondary, air-cooled heat exchangers 40. The heat exchangers 40 are connected to the chambers 14 by means of a header 42 and conduits 46, 48. In normal operation, refrigerant vapour from the chambers 14 is condensed in the chamber 30 and flows back to the baths. If the ambient air is sufficiently cool, the operation of the primary condenser 30 may be discontinued, allowing the vapour to be condensed in the secondary condensers 40.
Patent GB-211592-A (GB)
Title: Improvements in or connected with mechanical feed devices for use in combination with furnaces
IPC: F23K3/00
Filed: 1922-11-27
Abstract: 211,592. Fallon, J. Nov. 27, 1922. Fuel, feeding; grates; ashes, removing.-Fuel is fed by a screw conveyer 4 on to a grate 7 adapted to be moved towards and away from the wall 6 of the furnace in parallel planes, or in planes radiating from a pivoted support 8, to effect feeding and crushing of the fuel, the fuel residues being removed by a reciprocating plough 11 disposed within a channel 38. The conveyer 4 is driven from a power shaft 19 through the crank 20, rod 21 and ratchet mechanism 24. The shaft 19 also drives through worm gearing 17, 18 a shaft 15 from which motion is transmitted through spur-wheel gearing 29, 30 to a shaft 31 carrying a cam 32. This cam operates a shaft 35 against the action of a spring 34, motion being transmitted from such shaft to the grate through a bell-crank lever 36 and rod 37. The shaft 15 also drives through bevel gearing 13, 14 and shaft 12 a crank 43 connected by a lever 40 to the ashremoving plough 11.
Patent GB-692474-A (GB)
Title: An optical filter for use with an optical system in reproducing black and white photographic images in colour
IPC: G02B5/20
Filed: 1948-12-15
Abstract: 692,474. Filters for colour kinematography. MILLAIS, W. Dec. 15, 1948 [Dec. 20, 1947], No. 32427/48. Class 97 (i). A colour filter for use with an optical system to reproduce from a black-and-white photo. graphic record an image having realistic colour effects, includes a disc of opaque material having several slits therein arranged in groups, these groups being disposed in concentric rings, certain groups of the slits being equally spaced from each other in the respective rings and the slits having differently coloured light filter elements closing the respective slits, the colour of each filter element being a primary colour and each group having the same relative proportion of identically the same primary colours. In the form shown in Fig. 2, the filter disc 20 has an outer ring of slits arranged in equally-spaced groups of three, each group containing a blue filter element 24, a red filter element 22 and a green filter element 23. Also on the disc is an inner ring of filter elements comprising two filter elements of each primary colour red, green and blue, and a central ring consisting of three filter elements. Such a filter 20 may be disposed in the light path from the lens 17 of a projector to a screen 18, Fig. 1, the projector including a lamp 10, reflector 12, condenser 14 and transparency holder 15 slidably receiving a transparent slide 16 which is projected on to the screen 18. The filter may be rotated about the projection axis. Each filter element may be coated with collodion or covered with transparent cellulose adhesive tape. The Specification as open to public inspection under Sect. 91 describes also a filter comprising two translucent discs which are cemented together at their margins and between which light filter elements as of gelatine are disposed in groups. This subject-matter does not appear in the Specification as accepted.
Patent GB-160578-A (GB)
Title: Improvements in friction clutches
IPC: F16D13/44
Filed: 1919-12-29
Abstract: 160,578. Brown, R. Waring-. Dec. 29, 1919. No Patent granted (Sealing fee not paid). Clutches, friction; operating clutches. -In clutches for automobiles &c., of the single intermediate plate type adapted to be engaged by the radial movement of wedges acting directly on the presser-plate, the annular driven plate is secured to its shaft by a flexible spider in order to permit slight tilting thereof. The driving-member, Fig. 1, is in the form of a casing, which, for accessibility, is in two parts, one of which, A<2>, is provided with a long boss A<6> freely mounted on the driven shaft B, and the other, A, may be an annulus secured to the engine fly-wheel A, or may be a disc carrying a hub secured to a driving- shaft. A ring B<2>, which may be faced with floating or fixed rings H of ferodo &c., is carried by two spiders B<3> of thin steel &c. plate secured to a polygonal portion B<4> of the shaft B and, by bolts B<7>, to lugs B<5> of the ring B<2>, which are so recessed at B<6> as to relieve the bolts of shear. The spiders are spaced by a distance-piece B' and are held by a nut B<10> against a shoulder B<9> of the shaft B, which has preferably slight axial play. In a modification, the ring B<2> is replaced by integral rim-portions of the spiders riveted &c. together, the spider-arms being dished to allow the rims to lie in contact. A presser-plate C has an inclined face acted on by wedges D, and spindles D<2>, outwardly pressed by adjustable springs D', screw by opposite-hand or differential threads into these wedges and into plungers D<5> guided in lugs A' of the part A<2> and having holes D<6> engaged by arms E of bell-crank levers, the other arms E<2> of which bear on a cone F slidably mounted on the boss A<6>. Concentric rings G, G<2> bear by ball thrust-bearings against the cone and a shoulder G' of the part A<6> respectively, and against each other by a cam-face, the ring G<2> being rotatable by an arm G<6> connected to a clutch-pedal &c., and the ring G being prevented from rotating by a spring-plate G<5> and pressed thereby against the ring G<2>. In a modification, shown in Fig. 3, each wedge D lies between a collar D' on the spindle D<2> and a collar D<8> on a sleeve D<9> secured to the spindle, thus avoiding differential or like threads. In both cases, rotation of the spindles adjusts the wedges. The presser-plate C is non-rotatably secured to the casing A<2>, for instance by lugs C<2> embracing the spindles D<2>, but when worn, can be turned to, and secured in, a new position. If conical wedges are used, the presser-plate may have cam-faces adapted to take up wear by rotation thereof. Plugs may be provided for the admission of lubricant.
Patent GB-866878-A (GB)
Title: Halogenation of synthetic rubber in latex form
IPC: C08F8/20
Filed: 1959-09-24
Abstract: A process for modifying a rubbery copolymer of an isoolefin and a multi-olefin comprises contacting a latex comprising 100 parts of rubber, 100-800 parts of water and 0,5-20 parts of a non-ionic, anionic or cationic emulsifier, with a halogenating agent until the polymer concontains at least 0,5 wt. per cent of halogen but not more than three atoms of halogen per double bond in the polymer.  Optional ingredients specified for the halogenation or subsequent compounding are tertiary amines such as pyridine, quinoline and their derivatives, peroxide catalysts, curing agents, accelerators, scorch retarders, fillers such as carbon black, silica, clay and titanium dioxide, extender and processing oils, plasticizers, heat treatment promoters such as N, 4-dinitroso-N-alkyl aniline, stearic acid, natural rubber, butyl or styrene/butadiene rubber, sodium hydroxide to adjust the pH and phenyl-beta-naphthylamine as anti-oxidant.  The latices may be precipitated with methyl ethyl ketone, acetone or isopropyl alcohol and find application in treating paper, textiles, tyre cord and hair, and in the manufacture of foam rubber, rubber goods, tyres, curing bladders and belts.  In examples the halogenation is effected with chlorine or bromine and the emulsifying agent used is sodium nonyl phenoxy polyoxyethylene sulphate/sodium dihydrogen orthophosphate.
Patent GB-1105236-A (GB)
Title: Improvements in peristaltic pumps
IPC: F04B43/12
Filed: 1966-07-21
Abstract: 1,105,236. Rotary flexible tube pumps. LKB-PRODUKTOR AB. July 21, 1966 [Aug. 3, 1965], No. 32723/66. Heading F1F. A rotary pump comprising a flexible tube 4, Fig. 1, supported on an inner supporting face 5 of a casing 1 made, e. g., of PVC and closed by a plastics detachable cover-plate (not shown) to permit cleaning of the pump parts, includes a plurality of rollers 3, each mounted without a central bearing and frictionally engaging a common driving member comprising a driving ring 9 and a driving wheel 8 with an O-ring (not shown) therebetween. Each roller comprises a lower part engagable with a rolling surface 6 of the casing and a slightly larger diameter upper part engaging the tube. The supporting face 5 includes three adjacent sections 5a, 5b, 5c each extending over an angle of 60‹ with the middle section 5b lying on a cylinder coaxial with the rolling face 6 and the outer sections 5a, 5c lying on a cylinder having an axis A offset with respect to the rolling face 6, so that the rollers 3 gradually approach the tube 4, fully compress it and then gradually recede from it. A pressure ring 7 having radial slots 7a is disposed between the upper parts of the rollers to produce a recoil movement in the sections 5a, 5c thus counteracting a tendency of the tube to wander. The rollers 3, and rings 7, 9 are made of a relatively hard synthetic material such as that known under the Registered Trade Mark "Delrin".
Patent GB-486652-A (GB)
Title: Improvements in or relating to antenna structures for radio direction finding systems
IPC: H01Q3/44
Filed: 1937-11-26
Abstract: 486,652. Directive wireless signalling. LORENZ AKT.-GES., C. Nov. 26, 1937, No. 32724. Convention date, Nov. 28, 1936. Addition to 466,948. [Class 40 (v)] In a directional transmitter of the kind described in Specification 466,948, the two reflectors 2, 3 which deflect the field from the energized aerial 1 are brought alternately into action by a push-rod 7, which is moved to open or close contacts 5, 6, by a cam or lever mounted behind a screening wall or reflector 4. The push-rod is made of insulating material to prevent radiation of energy from the transmitted beam, and its length is adjustable at 12. The arrangement is particularly suitable for decimetre waves. Specification 405,727 also is referred to.
Patent GB-329402-A (GB)
Abstract: 329,402. Ure, A. M. Feb. 23, 1929. Addition to 190,785. Dampers; combined open fireplacss and cooking-stoves.-The combination stove of the parent Specification is provided with three pivoted dampers E, E<1>, E<2> controlling a centre flue and side flues D, D' below the hot-plate B. The damper E is lifted by a cam A<2> on a rotatable operating rod A provided with a shoulder A<3>, which prevents the passage of smoke through the aperture in the front plate through which the rod passes. The damper E<1> controlling the opposite side flue moves together with the damper E, both being integral with or attached to a rod G. The centre damper E<2> is provided with a projecting arm H which the damper E engages in rising, and so lifts the damper E<2>.
Patent GB-397835-A (GB)
Title: Improvements in or relating to devices for enabling heavy fuels to be used in petrolengines
IPC: F02M31/08
Filed: 1931-11-27
Abstract: 397,835. Vaporizers. AURENTY, G., 148, Quai du Port, Marseilles, France. Nov. 27, 1931, No. 32944. Convention date, Nov. 28, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] Exhaust gases enter a casing 9 through a pipe 10 and heat combustible mixture, which enters a surrounding casing 1 through a port 8 and discharges through a pipe 4 leading to the induction pipe 5. The exhaust gases are conveyed from the casing 9 through an inclined pipe 12 which terminates in a bevelled portion adjacent a mixture inlet port 8.
Patent GB-535443-A (GB)
Title: Improvements in and relating to refrigerating systems
IPC: F25B49/02
Filed: 1939-12-29
Abstract: 535,443. Refrigerating. BRITISH THOMSONHOUSTON CO.. Ltd. Dec. 29, 1939. No. 33019. Convention date, Dec. 30, 1938. [Class 29] Compression systems.-The return vapour or suction conduit 27 from the evaporator 20 is divided into parallel conduits 28 29 the conduit 28 being of larger bore than the conduit 29 and being branched from aT-piece 33 in such manner that any unevaporated refrigerant is separated and passes with the vapour through the direct conduit 29, which is heated to vaporize the liquid present. The vapour thus reaches the compressor in a "superheated" condition, and the thermal element 30 controlling the usual expansion valve 26 is located on a part of the suction conduit traversed by the "superheated" vapour so that the valve is rendered more sensitive. The heating in the conduit 29 may be effected as shown in Fig. 1 by a coil 32 traversed by diquified refrigerant on its way from the condenser 23 to the expansion valve, or by electric heating elements 35, Fig. 3 in contact with flattened portions of the tube 29, which is enclosed in a two-@art heat insulated casing 41. The arrangement is applicable especially to air cooling systems in which brine cooled by the evaporator in a tank 16 is circulated by a pump 17 through a cooler 15 in the air conduit 10.
Patent GB-365227-A (GB)
Title: Improvements in or relating to hair drying devices
IPC: A45D20/46
Filed: 1930-11-04
Abstract: 365,227. Drying-appliances for the hair. SALM, A., 3, Leonhardstrasse, Braunschweig, Germany. Nov. 4, 1930, No. 33089. [Class 131.] A hair-drying device adapted to fit over the head comprises a hot-air distributing- chamber a on which are pivoted a series of annular tubes b having inwardly-directed air outlet holes. The ends of the tubes are mounted in openings m in the walls of the chamber a, and are secured in any desired angular position by known means, e.g. by friction or by pinching screws. The uppermost tube b is supported when in position ready for use by a hook or rest e on the chamber a, and the remaining tubes are supported in the lowest positions either by rests g on the exterior of the chamber a, or by chains f attached to the overlying tubes. The front part of the lowest tube b is cranked upwardly to avoid heating the forehead. Shorter tubes hare pivotally mounted on both sides of the lower part of the chamber a for drying the back hair. The chamber a is provided with a hot air inlet i which is rotatably mounted in a stan dard k, and may contain a throttle valve. Throttle valves may also be provided for controlling the air supply to the tubes b, h separately, or for controlling the supply to each individual tube.
Patent GB-1320601-A (GB)
Title: Method and apparatus for editing motion picture film
IPC: G03B35/24
Filed: 1971-07-14
Abstract: 1320601 Cine apparatus; editing prepared films POLAROID CORP 14 July 1971 [17 July 1970] 33106/71 Heading G2C and G2E A method of and apparatus for projecting an edited cine film that does not involve the physical removal of unwanted film lengths. The unwanted lengths are delineated by data on a track on the film, a sensing device detects this data and issues signals in response, the signals acting on a film drive control which is caused to project the desired film lengths at a normal projection speed and to rapidly pass over the unwanted lengths, preferably with the light source obscured. As shown in Fig. 1 film F in a cassette 10 is projected by means of lamp 26, mirror 28 and lens 14, the undesired images being distinguished by recording electromagnetically data on a track provided on the film F. This recording is performed by head 72. When the film is subsequently projected, head 72 also senses this data. When sensed it provides an input to the circuit, shown in Fig. 5, which activates the solenoid 52 to withdraw claw 46 to the position, shown in dotted lines, activates the solenoid 64 to move shutter 58 to cover the light source and speeds up the motor 30 to continuously feed the undesired portion of film F through the projection gate at high speed. When the head 72 no longer senses the signal the projection is returned to intermittent film claw feed at a normal viewing rate. Alternatively the data on the film F may be in the form of opaque marks e.g. crayon at the beginning and end of the undesired length of film images. These are sensed by a photo-cell which activates the solenoids 52, 64 and motor speed control 82 by means of a flipflop whose input is connected to the photo-cell. Mechanically sensed data may also be used, e.g. notched film edges.
Patent GB-1152515-A (GB)
Title: Improvements in or relating to Copy-Turning Mechanisms
Inventor: HATFIELD HORACE DAVID
IPC: B23B3/28
Filed: 1967-07-19
Abstract: 1,152,515. Copy-turning. BRYANT SYMONS & CO. Ltd. 19 July, 1967, No. 33114/67. Heading B3T. A copy-turning mechanism for reproducing the shape of a rotating former 3 on a workpiece 14, e.g. a piston, by means of a tool 13 comprises a follower 2 adapted to engage the former 3 and means acting both on the follower 2 and on the former 3 to urge the follower into engagement with the former. The follower 2 and a dummy follower 5 are mounted coaxially in end portions of a yoke 11, 12 which is extended to carry the tool 13 and which is itself slidably mounted for movement along the axis 10. The follower 2 is adjustable relative to the yoke by means of a micrometer cap 29 and screw 25 and is supported axially by a spring washer 33, which allows a very small degree of resilience to the follower 2. The dummy follower 5 is slidably mounted in a fixed support 36 and is spring loaded in a direction away from the former by a spring 50 acting on a piston mem- 44 in a cylinder 38. Air pressure admitted into the cylinder 38 first causes the dummy follower to contact the former and then causes the whole yoke to slide toward the workpiece until the follower 2 contacts the former 3. The entire structure is movable longitudinally relative to the former and workpiece. An increase of pressure in the cylinder 38 can be used to provide a slightly deeper cut without adjusting the follower 2 by reason of the resilience of the washer 33.
Patent GB-1052263-A (GB)
Title: Improvements relating to Proximity Indicating Devices
Inventor: WOOD ALAN EDGAR
IPC: H03K17/95
Filed: 1962-08-31
Abstract: 1, 052,263. Detecting magnetic bodies. G. & J. WEIR Ltd. July 8, 1963 [Aug. 31, 1962], No. 33438/62. Heading G1N. A proximity switch comprises two coils 61 and 62 wound on a U-shaped core and arranged in opposite limbs of a bridge circuit the third and fourth limbs each being constituted by resistors R1, R2. The two inductances have a capacitor C1, C2 connected in series (or alternatively in parallel) so that the bridge is normally balanced at the supply frequency. If now a magnetic material is brought into the neighbourhood of the air gap the bridge is unbalanced and produces an output signal. This signal may be fed to ancillary equipment such as a computer or, as shown, may be rectified and used to operate a relay RL1. This relay may then operate the second relay RL2.
Patent GB-922364-A (GB)
Title: Method of producing cycloalkanoneoxime hydrochlorides
Filed: 1961-09-20
Abstract: Cycloalkanone oxime hydrochlorides are prepared by treating a cycloalkane with nitrosyl chloride in the presence of hydrogen chloride and under actinic radiation, the reaction being effected at -10 to 50 DEG C. and nitrosyl chloride being fed to the reaction zone at a partial pressure of 5-80 mm.  The hydrogen chloride may be fed to the reaction zone in admixture with the nitrosyl chloride or it may be dissolved in the cycloalkane before the nitrosyl chloride is introduced.  The nitrosyl chloride may be diluted with an inert gas, e.g. carbon dioxide or nitrogen, and the cycloalkane may be diluted with an inert liquid, e.g. benzene or carbon tetrachloride.  The oxime hydrochlorides may be converted into the free oximes in known manner, and the free oximes in turn may be converted into the corresponding lactams. Examples are given of the treatment of cyclohexane and cyclo-octane.  The treatment of cycloheptane also is mentioned.
Patent GB-618930-A (GB)
Title: Improvements in or relating to rotary electric switches
IPC: H01H19/63
Filed: 1946-11-13
Abstract: 618,930. Snap-action switches. PARSONS, C. S. (Elcalor Akt.-Ges. Fabrik fur Elektrothermische Apparate). Nov. 13, 1946, No. 33735. [Class 38 (v)] The fixed contacts 13 of a snap-action rotary switch suitable for a cooker, are connected to clamps 7 ... 9 and extend freely through slots 12 in the base 1. The contacts are adapted to be bridged by contacts 18 in slots in discs 16 on a shaft 15, the shaft being located in its various switching positions and held in a bearing by star-wheels 22 engaging wheels 27 on a spring-urged lever 23. The shaft may also operate spring- mounted contacts 36, 37, in a signalling circuit, by means of a lever 38.
Patent GB-1500325-A (GB)
Title: Semiconductor device
IPC: H01L27/07
Filed: 1975-08-14
Abstract: 1500325 Semi-conductor device RCA CORPORATION 14 Aug 1975 [26 Aug 1974] 33911/75 Heading H1K A semi-conductor device 10 comprises a wafer having upper and lower regions 14, 15 of one conductivity type, a layer 16 of semiconductor forming a first PN junction 18 and having at preselected locations relatively undoped regions 22 of a second conductivity type laterally surrounded by a first portion 20 of the layer of the second conductivity type, a second portion 24 of the layer of the first conductivity type within the first portion and forming a second PN junction 26 therewith, and first, second and third electrodes 28, 32, 30, respectively, the third electrode being positioned such that the relatively high resistivity regions 22 are in the electrical path from the third electrode to the second PN junction. Locations of high current-density are previously identified in a test device having a PN junction by taking an infra-red photograph of the junction during the current flow across it. As shown, Fig. 2, the regions 22 are also provided on the other side of the PN junction 26 extending through the second portion 24 of the layer. The first portion 20 of the second conductivity type having higher carrier concentration is formed by drivein diffusion of e.g. boron, by depositing a layer of doped oxide on a region uncovered by a diffusion mask of SiO 2 , the drive-in diffusion resulting in the formations of the regions 22 surrounded by the first portion 20, the difference in carrier concentration between 20, 22 being 2-5 orders of magnitude. Similarly, a second portion 24 of the first type conductivity and preferably including the regions 22, is formed in the first region and interdigitates with the same forming a second PN junction 26. Emitter and base electrodes 30, 32, respectively, formed by, e.g. sputtering, chemical vapour deposition, contact their respective regions through openings in an oxide coating 34, the configuration of the base electrode 32 being such that its edge (33), Fig. 1 (not shown), is spaced from the junction 26 so as to include the regions 22 in the electrical path between the electrodes 30, 32. The second region has a carrier concentration of 10<SP>17</SP>-10<SP>21</SP> atoms/cm.<SP>3</SP>.